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Finding the Fourth Proportional to 143.02, 214.56 and 61.82

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Solution

The fourth proportional to 143.02, 214.56 and 61.82 is: 92.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.02 : 214.56 = 61.82 : x
  2. Step 2: Convert to fraction form
    143.02/214.56 = 61.82/x
  3. Step 3: Cross multiply
    143.02x = 214.56 × 61.82
  4. Step 4: Simplify right side
    143.02x = 13,264.10
  5. Step 5: Solve for x
    x = 13,264.10/143.02
  6. Step 6: Final answer
    x = 92.74

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